Abstract
Abstract In this paper, an effective hybrid wind-photovoltaic system including battery energy storage system with an optimal number of converters has been introduced. The proposed system provides an economical solution for combining PV and grid by removing the PV dedicated converter. The proposed configuration uses both the grid side and rotor side converters of the generator to inject PV power into the grid. So, it is also able to inject PV power into the network more efficiently compared with the conventional systems. The complementary profiles of solar radiation and wind energy considerably improves the converters utilization. Moreover, by means of the embedded energy storage, the impact of intermittency of wind and radiation has been significantly reduced in the proposed system. Additionally, even though the converter typically dedicated to PV systems has been dispensed with, the PV system operates with a maximum power point tracking (MPPT) strategy. The simulation results verify the ability and effectiveness of the proposed system in comparison with a previously proposed similar system.
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